2 articles, every claim sourced
Every desktop browser now ships tab groups and most ship vertical tabs, so the useful question stopped being which features exist. It is which of them are actually running when you install the thing, and that answer differs by platform inside a single browser.
START HEREBest Browser for Multiple Tabs: 8 Compared, 1 Warning- it puts all eight browsers against the same criteria, and it is explicit about the one to stop recommending.
A feature list is not a default. Firefox ships tab unloading in every build and only runs it on Windows, and a comparison table has no column that would ever show you that.
Firefox shipped vertical tabs, tab groups, split view, local AI grouping and built-in Containers in eighteen months, and leaves nearly all of it switched off. Including the tab unloading that only runs on Windows, and the one thing Firefox still has no answer for.
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What Chrome, Firefox, Edge, Vivaldi, Brave, Opera, Safari and Zen each give you for handling tabs, sourced and dated. Including Chrome's vertical tabs landing in April 2026, the Collections feature Edge deleted in June, and why Arc is now a warning rather than a pick.
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